<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>bootstrap</title>
    <link rel="stylesheet" href="css/bootstrap.min.css">
    
</head>
<body>
<div class="input-group">
  <div class="input-group-btn">
    <button class="btn btn-info">按钮</button>
  </div>
  <input type="text" class="form-control">
  <div class="input-group-btn">
    <button class="btn btn-info">按钮</button>
  </div>
</div>




<script src="js/jquery-3.6.0.min.js"></script>
<script src="js/bootstrap.min.js"></script>
</body>
</html>